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-rw-r--r--crates/hir_def/src/body/lower.rs35
1 files changed, 25 insertions, 10 deletions
diff --git a/crates/hir_def/src/body/lower.rs b/crates/hir_def/src/body/lower.rs
index 209965fca..bc61730a7 100644
--- a/crates/hir_def/src/body/lower.rs
+++ b/crates/hir_def/src/body/lower.rs
@@ -1,7 +1,7 @@
1//! Transforms `ast::Expr` into an equivalent `hir_def::expr::Expr` 1//! Transforms `ast::Expr` into an equivalent `hir_def::expr::Expr`
2//! representation. 2//! representation.
3 3
4use std::{any::type_name, sync::Arc}; 4use std::{any::type_name, mem, sync::Arc};
5 5
6use either::Either; 6use either::Either;
7use hir_expand::{ 7use hir_expand::{
@@ -36,8 +36,8 @@ use crate::{
36 item_tree::{ItemTree, ItemTreeId, ItemTreeNode}, 36 item_tree::{ItemTree, ItemTreeId, ItemTreeNode},
37 path::{GenericArgs, Path}, 37 path::{GenericArgs, Path},
38 type_ref::{Mutability, Rawness, TypeRef}, 38 type_ref::{Mutability, Rawness, TypeRef},
39 AdtId, ConstLoc, ContainerId, DefWithBodyId, EnumLoc, FunctionLoc, Intern, ModuleDefId, 39 AdtId, BlockLoc, ConstLoc, ContainerId, DefWithBodyId, EnumLoc, FunctionLoc, Intern,
40 StaticLoc, StructLoc, TraitLoc, TypeAliasLoc, UnionLoc, 40 ModuleDefId, StaticLoc, StructLoc, TraitLoc, TypeAliasLoc, UnionLoc,
41}; 41};
42 42
43use super::{diagnostics::BodyDiagnostic, ExprSource, PatSource}; 43use super::{diagnostics::BodyDiagnostic, ExprSource, PatSource};
@@ -152,8 +152,8 @@ impl ExprCollector<'_> {
152 fn alloc_expr_desugared(&mut self, expr: Expr) -> ExprId { 152 fn alloc_expr_desugared(&mut self, expr: Expr) -> ExprId {
153 self.make_expr(expr, Err(SyntheticSyntax)) 153 self.make_expr(expr, Err(SyntheticSyntax))
154 } 154 }
155 fn empty_block(&mut self) -> ExprId { 155 fn unit(&mut self) -> ExprId {
156 self.alloc_expr_desugared(Expr::Block { statements: Vec::new(), tail: None, label: None }) 156 self.alloc_expr_desugared(Expr::Tuple { exprs: Vec::new() })
157 } 157 }
158 fn missing_expr(&mut self) -> ExprId { 158 fn missing_expr(&mut self) -> ExprId {
159 self.alloc_expr_desugared(Expr::Missing) 159 self.alloc_expr_desugared(Expr::Missing)
@@ -222,7 +222,7 @@ impl ExprCollector<'_> {
222 MatchArm { pat, expr: then_branch, guard: None }, 222 MatchArm { pat, expr: then_branch, guard: None },
223 MatchArm { 223 MatchArm {
224 pat: placeholder_pat, 224 pat: placeholder_pat,
225 expr: else_branch.unwrap_or_else(|| self.empty_block()), 225 expr: else_branch.unwrap_or_else(|| self.unit()),
226 guard: None, 226 guard: None,
227 }, 227 },
228 ]; 228 ];
@@ -561,7 +561,7 @@ impl ExprCollector<'_> {
561 let outer_file = self.expander.current_file_id; 561 let outer_file = self.expander.current_file_id;
562 562
563 let macro_call = self.expander.to_source(AstPtr::new(&e)); 563 let macro_call = self.expander.to_source(AstPtr::new(&e));
564 let res = self.expander.enter_expand(self.db, Some(&self.body.item_scope), e); 564 let res = self.expander.enter_expand(self.db, e);
565 565
566 match &res.err { 566 match &res.err {
567 Some(ExpandError::UnresolvedProcMacro) => { 567 Some(ExpandError::UnresolvedProcMacro) => {
@@ -697,12 +697,27 @@ impl ExprCollector<'_> {
697 } 697 }
698 698
699 fn collect_block(&mut self, block: ast::BlockExpr) -> ExprId { 699 fn collect_block(&mut self, block: ast::BlockExpr) -> ExprId {
700 let syntax_node_ptr = AstPtr::new(&block.clone().into()); 700 let ast_id = self.expander.ast_id(&block);
701 let block_loc = BlockLoc { ast_id, module: self.expander.module };
702 let block_id = self.db.intern_block(block_loc);
703 let def_map = self.db.block_def_map(block_id);
704 let root = def_map.module_id(def_map.root());
705 let prev_def_map = mem::replace(&mut self.expander.def_map, def_map);
706 let prev_module = mem::replace(&mut self.expander.module, root);
707
701 self.collect_stmts_items(block.statements()); 708 self.collect_stmts_items(block.statements());
702 let statements = 709 let statements =
703 block.statements().filter_map(|s| self.collect_stmt(s)).flatten().collect(); 710 block.statements().filter_map(|s| self.collect_stmt(s)).flatten().collect();
704 let tail = block.tail_expr().map(|e| self.collect_expr(e)); 711 let tail = block.tail_expr().map(|e| self.collect_expr(e));
705 self.alloc_expr(Expr::Block { statements, tail, label: None }, syntax_node_ptr) 712 let syntax_node_ptr = AstPtr::new(&block.clone().into());
713 let expr_id = self.alloc_expr(
714 Expr::Block { id: block_id, statements, tail, label: None },
715 syntax_node_ptr,
716 );
717
718 self.expander.def_map = prev_def_map;
719 self.expander.module = prev_module;
720 expr_id
706 } 721 }
707 722
708 fn collect_stmts_items(&mut self, stmts: ast::AstChildren<ast::Stmt>) { 723 fn collect_stmts_items(&mut self, stmts: ast::AstChildren<ast::Stmt>) {
@@ -832,7 +847,7 @@ impl ExprCollector<'_> {
832 if annotation == BindingAnnotation::Unannotated && subpat.is_none() { 847 if annotation == BindingAnnotation::Unannotated && subpat.is_none() {
833 // This could also be a single-segment path pattern. To 848 // This could also be a single-segment path pattern. To
834 // decide that, we need to try resolving the name. 849 // decide that, we need to try resolving the name.
835 let (resolved, _) = self.expander.crate_def_map.resolve_path( 850 let (resolved, _) = self.expander.def_map.resolve_path(
836 self.db, 851 self.db,
837 self.expander.module.local_id, 852 self.expander.module.local_id,
838 &name.clone().into(), 853 &name.clone().into(),